Close idle sockets next time we are about to send data.

net/socket/client_socket_pool_base_unittest.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/socket/client_socket_pool_base.h"
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_vector.h"
@@ skipping 474 matching lines @@
   }
 
   bool HasGroup(const std::string& group_name) const {
     return base_.HasGroup(group_name);
   }
 
   void CleanupTimedOutIdleSockets() { base_.CleanupIdleSockets(false); }
 
   void EnableConnectBackupJobs() { base_.EnableConnectBackupJobs(); }
 
+  void UseCleanupTimer(bool enabled) {
+    base_.SetCleanupTimerEnabled(enabled);
+  }
+
  private:
   TestClientSocketPoolBase base_;
 
   DISALLOW_COPY_AND_ASSIGN(TestClientSocketPool);
 };
 
 }  // namespace
 
 REGISTER_SOCKET_PARAMS_FOR_POOL(TestClientSocketPool, TestSocketParams);
 
@@ skipping 1434 matching lines @@
                         pool_.get(),
                         BoundNetLog()));
   EXPECT_EQ(LOAD_STATE_CONNECTING, pool_->GetLoadState("a", &handle));
   EXPECT_EQ(ERR_CONNECTION_FAILED, callback.WaitForResult());
   EXPECT_FALSE(handle.is_initialized());
   EXPECT_FALSE(handle.socket());
   EXPECT_TRUE(handle.is_ssl_error());
   EXPECT_FALSE(handle.ssl_error_response_info().headers.get() == NULL);
 }
 
+TEST_F(ClientSocketPoolBaseTest, DisableCleanupTimer) {
+  CreatePoolWithIdleTimeouts(
+      kDefaultMaxSockets, kDefaultMaxSocketsPerGroup,
+      base::TimeDelta::FromMilliseconds(10),  // Time out unused sockets
+      base::TimeDelta::FromMilliseconds(10));  // Time out used sockets
+
+  // Disable cleanup timer.
+  pool_->UseCleanupTimer(false);
+
+  connect_job_factory_->set_job_type(TestConnectJob::kMockPendingJob);
+
+  // Startup two mock pending connect jobs, which will sit in the MessageLoop.
+
+  ClientSocketHandle handle;
+  TestOldCompletionCallback callback;
+  int rv = handle.Init("a",
+                       params_,
+                       LOWEST,
+                       &callback,
+                       pool_.get(),
+                       BoundNetLog());
+  EXPECT_EQ(ERR_IO_PENDING, rv);
+  EXPECT_EQ(LOAD_STATE_CONNECTING, pool_->GetLoadState("a", &handle));
+
+  ClientSocketHandle handle2;
+  TestOldCompletionCallback callback2;
+  rv = handle2.Init("a",
+                    params_,
+                    LOWEST,
+                    &callback2,
+                    pool_.get(),
+                    BoundNetLog());
+  EXPECT_EQ(ERR_IO_PENDING, rv);
+  EXPECT_EQ(LOAD_STATE_CONNECTING, pool_->GetLoadState("a", &handle2));
+
+  // Cancel one of the requests.  Wait for the other, which will get the first
+  // job.  Release the socket.  Run the loop again to make sure the second
+  // socket is sitting idle and the first one is released (since ReleaseSocket()
+  // just posts a DoReleaseSocket() task).
+
+  handle.Reset();
+  EXPECT_EQ(OK, callback2.WaitForResult());
+  // Use the socket.
+  EXPECT_EQ(1, handle2.socket()->Write(NULL, 1, NULL));
+  handle2.Reset();
+
+  // We post all of our delayed tasks with a 2ms delay. I.e. they don't
+  // actually become pending until 2ms after they have been created. In order
+  // to flush all tasks, we need to wait so that we know there are no
+  // soon-to-be-pending tasks waiting.
+  base::PlatformThread::Sleep(20);
+  MessageLoop::current()->RunAllPending();
+
+  ASSERT_EQ(2, pool_->IdleSocketCount());
+
+  // Request a new socket. This should cleanup the unused and timed out ones.
+  CapturingBoundNetLog log(CapturingNetLog::kUnbounded);
+  rv = handle.Init("a",
+                   params_,
+                   LOWEST,
+                   &callback,
+                   pool_.get(),
+                   log.bound());
+  EXPECT_EQ(OK, rv);
+  EXPECT_TRUE(handle.is_reused());
+
+  // Make sure the idle socket is closed
+  ASSERT_TRUE(pool_->HasGroup("a"));
+  EXPECT_EQ(0, pool_->IdleSocketCountInGroup("a"));
+  EXPECT_EQ(1, pool_->NumActiveSocketsInGroup("a"));
+
+  net::CapturingNetLog::EntryList entries;
+  log.GetEntries(&entries);
+  EXPECT_TRUE(LogContainsEntryWithType(
+      entries, 1, NetLog::TYPE_SOCKET_POOL_REUSED_AN_EXISTING_SOCKET));
+}
+
 TEST_F(ClientSocketPoolBaseTest, CleanupTimedOutIdleSockets) {
   CreatePoolWithIdleTimeouts(
       kDefaultMaxSockets, kDefaultMaxSocketsPerGroup,
       base::TimeDelta(),  // Time out unused sockets immediately.
       base::TimeDelta::FromDays(1));  // Don't time out used sockets.
 
   connect_job_factory_->set_job_type(TestConnectJob::kMockPendingJob);
 
   // Startup two mock pending connect jobs, which will sit in the MessageLoop.
 
@@ skipping 1307 matching lines @@
   // The hung connect job should still be there, but everything else should be
   // complete.
   EXPECT_EQ(1, pool_->NumConnectJobsInGroup("a"));
   EXPECT_EQ(0, pool_->IdleSocketCountInGroup("a"));
   EXPECT_EQ(1, pool_->NumActiveSocketsInGroup("a"));
 }
 
 }  // namespace
 
 }  // namespace net